Draggable: Modified the iframe shims to load prior to dragging. Fixed #7270.

Author: webghost

ui/jquery.ui.draggable.js

@@ -79,6 +79,16 @@ $.widget("ui.draggable", $.ui.mouse, {
 		this.handle = this._getHandle(event);
 		if (!this.handle)
 			return false;
+		
+		$(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() {
+			$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>')
+			.css({
+				width: this.offsetWidth+"px", height: this.offsetHeight+"px",
+				position: "absolute", opacity: "0.001", zIndex: 1000
+			})
+			.css($(this).offset())
+			.appendTo("body");
+		});
 
 		return true;
 
@@ -212,6 +222,16 @@ $.widget("ui.draggable", $.ui.mouse, {
 		return false;
 	},
 
+	_mouseUp: function(event) {
+		if (this.options.iframeFix === true) {
+			$("div.ui-draggable-iframeFix").each(function() { 
+				this.parentNode.removeChild(this); 
+			}); //Remove frame helpers
+		}
+		
+		return $.ui.mouse.prototype._mouseUp.call(this, event);
+	},
+	
 	cancel: function() {
 
 		if(this.helper.is(".ui-draggable-dragging")) {
@@ -616,24 +636,6 @@ $.ui.plugin.add("draggable", "cursor", {
 	}
 });
 
-$.ui.plugin.add("draggable", "iframeFix", {
-	start: function(event, ui) {
-		var o = $(this).data('draggable').options;
-		$(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() {
-			$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>')
-			.css({
-				width: this.offsetWidth+"px", height: this.offsetHeight+"px",
-				position: "absolute", opacity: "0.001", zIndex: 1000
-			})
-			.css($(this).offset())
-			.appendTo("body");
-		});
-	},
-	stop: function(event, ui) {
-		$("div.ui-draggable-iframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers
-	}
-});
-
 $.ui.plugin.add("draggable", "opacity", {
 	start: function(event, ui) {
 		var t = $(ui.helper), o = $(this).data('draggable').options;